多选题 1.00分

共用题干
Prolonging Human Life

  • A. The old people are heavy load for the society.
  • B. Prolonging human life may lead to population explosion.
  • C. How to prolong human life.
  • D. Dependency load caused by prolonging human life.
  • E. Increased birthrate helps prolong human life.
  • F. How the old people are cared for when they are getting weak in contemporary society.

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